A5039586723- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Air Quality and Health Impacts
- Tourism, Volunteerism, and Development
- Chemistry and Chemical Engineering
- Atmospheric aerosols and clouds
- Water Quality Monitoring and Analysis
- Vehicle emissions and performance
- Radioactive contamination and transfer
- Planetary Science and Exploration
- Nuclear Physics and Applications
- Advanced Chemical Sensor Technologies
- Genetics, Bioinformatics, and Biomedical Research
- Service-Learning and Community Engagement
- Metabolomics and Mass Spectrometry Studies
- Ocean Acidification Effects and Responses
- Archaeology and ancient environmental studies
- Air Quality Monitoring and Forecasting
- Climate Change, Adaptation, Migration
- Aquaculture Nutrition and Growth
- Global Education and Multiculturalism
University of Washington
2002-2010
University of Washington Bothell
2002-2004
Using a 15‐year record of O 3 from Lassen Volcanic National Park, rural elevated site in northern California, data two aircraft campaigns conducted 1984 and 2002 over the eastern North Pacific, observations spanning 18 years five U.S. west coast, marine boundary layer sites, we show that air arriving Eastern Pacific spring has increased by approximately 10 ppbv, i.e. 30% mid 1980s to present. This positive trend correlates with increasing global nitrogen oxide emissions, which is especially...
Measurements during the Intercontinental Transport and Chemical Transformation 2002 (ITCT 2K2) field study characterized springtime, eastern Pacific ozone distribution at two ground sites, from National Oceanic Atmospheric Administration WP‐3D aircraft, a light aircraft operated by University of Washington. D. Jaffe colleagues compared with measurements made in region over previous decades show that average levels midlatitude have systematically increased ∼10 ppbv last decades. Here we...
The distribution and atmospheric budgets for molecular hydrogen its deuterium component δ D are simulated with the GEOS‐Chem global chemical transport model constrained by observations of H 2 from NOAA Climate Monitoring Diagnostics Laboratory network ship ground stations. Our simulation includes a primary source 38.8 Tg −1 (22.7 fossil biofuels, 10.1 biomass burning, 6.0 ocean) (where is years) secondary photochemical photolysis formaldehyde 34.3 . tropospheric mean 525 ppbv, burden 141...
During the spring of 2002, vertical profiles O 3 , CO, nonmethane volatile organic compounds (VOCs), and total aerosol scattering were collected over northwestern coast Washington State as part University Washington's Photochemical Ozone Budget Eastern North Pacific Atmosphere (PHOBEA) research campaign. These observations coincided with NOAA's Intercontinental Transport Chemical Transformation 2002 (NOAA‐ITCT 2K2) project. Thirteen flights conducted from 29 March through 23 May several...
Ground and airborne measurements of CO, ozone, aerosols were obtained in the northeastern (NE) Pacific troposphere during 9 March–31 May 2001 as part PHOBEA‐II project (Photochemical Ozone Budget Eastern North Atmosphere). The GEOS‐CHEM global three‐dimensional model tropospheric chemistry was used for flight planning, well data analysis after field mission to examine origin CO ozone over NE Pacific. successfully reproduces observed levels, their temporal variability, vertical gradients,...
On the basis of observations from 1997–2002 Photochemical Ozone Budget Northeast Pacific (PHOBEA) experiments, we have identified 11 transpacific long‐range transport (LRT) episodes, which contain significantly elevated levels CO, O 3 , and aerosol scattering. The LRT episodes were determined aircraft ground‐based scattering coefficient, 281 whole air samples analyzed for nonmethane hydrocarbons (NMHC). ratio excess to CO (ΔO /ΔCO) ranged −0.06 1.52. Lower ΔO /ΔCO ratios (<0.10) are...
Airborne observations of NMHCs, O 3 , CO, and aerosol scatter were made near the coast Washington State from 29 March to 6 May 2001 as part Photochemical Ozone Budget Eastern North Pacific‐II (PHOBEA‐II) experiment. These overlapped time period TRACE‐P (24 February 10 April 2001) ACE‐ASIA (27 30 experiments operating in Western Pacific. Measurements during 12 flights at 48.31 ± 0.03°N latitude, 124.63 0.08°W longitude altitudes 0 km. On several flights, significant enhancements all species...
The atmospheric molecular hydrogen concentration and its deuterium abundance were measured in remote air samples collected onboard six Pacific Ocean ship transects between 37°N 77°S during years 2001 through 2005. data reveal a year‐round interhemispheric gradient H 2 isotopic composition with the extratropical Northern Hemisphere lower by 17 ± 11 ppb δ D of 16 12‰ than Southern (95% confidence). On basis these snapshots, was observed to be smallest September November, time that experiences...
Cardiovascular disease is one of the main risk factors death worldwide. A diet rich in saturated fatty acids and cholesterol known to cause cardiovascular diseases like coronary heart atherosclerosis by increasing reactive oxygen species levels causing mitochondrial dysfunction. Unsaturated have shown decrease for reducing levels. To determine relationship oleic acid (ROS), zebrafish (Danio rerio) were fed high fat diets consisting (OA) with (OAC). We hypothesize that larvae are will show...